Box-stapling machine.



W. OSTBRHOLM. BOX STAPLING MAGHINE.

Patented Jan. 3, 1911.

W. OSTERHOLM. L B0X STAPLING MAGHINE. I APPLICATION FILED JULY 7, 1908L Patented 1.1113, 11311.

W. OSTERHOLM. BOX STAPLIN G MACHINE. APPLICATION PILPD JULY 7, 1908.

Patented .151113,1911.

4 SHEETS-SHEET 3.

W. OSTBRHOLM. BOX STAPLING MACHINE. APPLIOATIO'N FILED JULY 7, 1908.

Patented J an. 3; 1911.

'4 SHEETS-SHEET 4.

UNITED- STATES lPAL'IBINI OFFICE. wILnrAM osrennonm' or CHICAGO, ILLINoIs, assmnon. To ymarinella,iiulcu.INEM' CCMPANY, 0F CIIICAGC, ILLINOIS, A ConronArIoN or ILLInoIs.

v BOX-STAPLING MACHINE. j

` vApputatioli mediuly To all whom it may concern."

Be it known that I, VVnMAM-Osnnnnomsn-- a citizen'of the United States, residing at Chicago, in the county of VCook and' State of Illinois, have invented certain new and useful Improvements'in Box- Stapling Malehines, of which the following .is aspeci- This invention relates to improvements in staple forming and driving mechanism particularly adapted for use in machines for st-apling or fastening the corners.r of boxes and the like, and one of the objects of the invention is to provide. improved means for shapingand holding the'staple' of while the' staple is being driven.

A- further object is-to .provide an im f proved plunger or driver for the staple and improved means for guidingthe plunger.

A further object is toprovide van improved machine of this character which will be simple, durable and compact in construction and effective and eiiicient in operation.

Tothe attainment of these ends and the accomplishment of other new and useful ob jects, as willappear, the invention consists in the features of 'novelty in the' construction, combination and arrangement of the several parts hereinafter more fully described and claimed andl shown in the accompanying drawings, lillustrating an embodiment of the invention, and in which-'- Figure l'is a detail 4 front elevation of an improved machine of this character constructedin' accordance with the Principles of this invention. .Fi 2 isa detail sectional view on line 2 2 of ignl. Fig. 43 isa detail sectional view ori line 3f3 of Fig. 2. Fig. 4y is ai detail ective view of the ig. 5 is aldetail penspective view of the staple former. Fig. 6 is a detail perspectiveview of the plunger or staple driver. Fig. 7 is a detail perspectiveview of the slide or guide for-the -staple 1 former. Fig. 8 is a detail sectional 4view of one extremity of theplunger or driver and the formenshowing these parts assembled. Fig. 9 is a detail perspective .view of one of the adjustable dogs or wings for guiding the lower extremity of the plunger or driver. Fig. 10'is a detail perspective view of the anvil support. Fig. 11 is a detail sectional view of the slide or guide for the y Specification of Letters latent.

7, 1908. Serial No. 442,825.

former showingV the spring for assisting in l"returning the slide. Fig. 12 is a detail View of the finished staple secured in one corner of a box, the box being shownin section. Fig. 13 is -a detail lperspective view of the guide for guiding t e material from which the staple is formed into the anvil. Figs.l 14, 15, 16 and 17 are detail pers ctive views showing the different ste s in and shaping of the Stap e.-

Referring more particularly'to the drawings and in the present exempliication of formation i Patented Jan. v3, 1911.

the invention, the numeral 29 designates a j suitable support for the mechanism, and 21 lis A an operatingcani` rotatably mounted thereon by means of la suitable shaft 221:0

which power may be applied in any desired` or suitable manner.' Y

Secured tothe support 20 'inany desired -or suitable manner are spaced guides23, 2d, and slidingly mountedv between these guides is a slide or guide 25, which .is provide with spaced sides 26 to'form an open ehimnel or groove extendingl longitudinally thereof. The rear wall of t e channel thus -formed is provided with an aperture or opening 27 located preferably adjacent the upper extremity thereof and the lower extremity 0f the rear wall is bifurcated as atf28 to form spaced portions, the lower extremities 29 of which are venlarged and reject inwardly as at 30, one face of each o the inwardly pro jecting portions 30 being beveled or inclined as at '31 and the upper portions of these faces are Aout away -on a curve as atv 32 Ito form a reduced opening adjacent the lower portion of the slide above the inclined faces 31.

Projecting laterallyv beyond .one ofthe sides 26 of tbe slide, preferably adjacent the upper end thereof, is a lug or extensionv32 and arranv'ed within a suitable recess .33

preferably 'in the guide 23 .on the support 20- is anl elastic member Stone extremity of j which rests vagainst the bottom of the' recess and the other extremity engagesI under -the lug -or projection 32 Iand this elastic member; tends normally-to hold the/guident' slide '25 elevated.

Slidingly mounted within the guide 25 is a former I(lesigllated generally by the refer'- enee numeral 35 and this former'is provided with spaced sides 36 to form a channel and the sides 36 are .so'spaced as :to .engage the inner faces of the sides 26 of the sliding guide 25. The lower extremity ofthe rear vjourna-ledl upon this-stub shaft 38 is an antifriction roller 39, a portion of which stands within the aperture 27 of the sliding guide 25 and serves as a'means for raislng the guide when the former is raised. The cam 21 is provided on the face adjacent-the sliding. guide 25 with a cam groove 40 into which another portion 41er a separate antifriction roller is adapted to stand and which roller is journaled upon this stub shaft 38, so that when the cam 21 is Arotated the former 35'will be raised or lowered and asv the anti-friction roller 39 engages the upper or lower'edge of the aperture 27 the sliding guide -25 will b e respectively raised or. lowered, but the former is arranged to, initially move in either direction in advance of the guide 25.

A suitable'anvil support having a body portion 42 is provided with an upright portion 43 of any desired or suitable length but preferably of a length substantially equal-to the length of the'former 35. The portion 43 ofthe anvil support is of a width substantially equal to the width ofthe space between the sides 36 of the formerl 35 and stands between the sides so as to move the -former when raised or lowered'. The body portion 42 Aof the anvil support project-s through the registering bifurcation 28 in the sliding guide 25 and the space 37 between the sides of the former which registers with the bifurcation 28 and preferably extends below the cam 21 andlto a point beyond the rear face thereof. An operatingmember 44- is secured by one extremity asat 45 to the body 42 of the anvil support and extends upwardly from said body portion in close proximity to the rear face ofthe camv 21. Journaled to the free extremity of the member 44 is an anti-friction roller 46 which is adapted to stand andJ move within a cam groove 47 inthe adjacent face of the cam 21, as shown more clearly in Fig. 2 of the drawings. Y

The cam grooves 40 and 47 in the cam 21 are so disposed with relation to each other that when the cam is operated the mecha.- nismfconneeted to'one of the faces will 'be operated slightly in advance of the mechanisms connected to the other face whereby the operation of the parts will be so timedas to permit them to assume the proper position for forming the staple. A

j grooves 62 exten -The body portion 42 of the anvil support is provided withan aperture 48 passing longitudmally therethrough and an anvil 49 provided with a supporting body 50 is held .in position by the support by means of the body portion 50 being inserted into the aperture 48. ,One extremity 51 ofthe body of the anvil is preferably reduced, as shown, and projects through an aperture in the end 52 of the body portion 42.

A suitable'elastic member 53, such as a coil 'spring or the like, surrounds the reduced portion 51 of the anvil within the aperture 48 so that one extremity of the elastic member will rest against the shoulder formed by the reduced portion and the other extremity will rest against the end of the body portion through which the extremity 51 of the anvil passes. This extremity preferably projects beyond the body portion 42 and is preferably threaded for the reception of a suitable fastening nut 54 which holds the anvil against displacement with respect to its support.

The anvil 49 is preferably somewhatlarger than the body portion 50 and is provided with an inclined front face 55 which inclines forwardly from the upper edge to the lower edge and the lower edge of the anvil is bifurcated as at 56 and the sides 57 of the bifurcation are inclined, as shown "more clearly in Fig. 4, to give the bifurcation a substantially inverted V-shape so that when the anvil is lowered to enga e the-'- corner of a box 58 (shown in' dotted lines in Fig. 1) and which box-rests upon a support 59, the sides 57 of the bifurcation will rest against the adjacent sides of the box. 'I he anvil is also provided with a slot 60 passing through the anvil lengthwise thereof, transversely of the bifurcation 56 and this slotopens through the front of the anvil.

The body portion 42 of the anvil support is cut away as at 61 adjacent the front thereof and the anvil 49 is adapted to vbe moved into the cut away portion. When the anvil and its support are assembled, the elastic member 53 tends normally to hold the anvil forward so that the front face 5.5 adjacent the upper edge thereof will co-lnclde with the front face of the upright portion 43 of the support, which will cause the lower portion of the frwardly inclined face 53 to project beyond the front face of the part 43 of the support. The sides 36 of the former 35 project beyond the portion 43 of the anvil support andare (provided with longitudinal ing lengthwise thereof.

A' plunger or driver 63 is provided with ,projecting ribs o64 which extend beyond the sides thereof and this plunger is adapted to move within the former 35 so that the ribs 64 will enter and move within the grooves 62, as shown more clearly in Fig. 3 of the drawings. The lower extremity pf theA form a division wall or partition 67 and one;-

of the faces of the plunger adjacent the re cesses and on each side of the partition 67 is cut away or notched as at 68 whichnotches open through the sides of vthe face. Arranged within each of the recesses 66 is a dog or wing 69 which is pivotally supported by means of lugs or trunnions 70, 71, proj ecting laterally therefrom adjacent one extremity. One of these lugs, preferably the 'lug 70, is adapted to'be seated .inv a sultable recess in one of the walls of the recess 66 and the other lug 71 is adapted' tobe inserted into the open notch 68 in the other wall whereby the dogs or wings'may be pivotally and removably held in position. These dogs or wings are of such a width with respect to the recesses 66 that they maybe seated entirely within the respective recess to reduce the width of the operating extremity of the plunger or driver 63. suitable elastic member 72 may be provided for normally projecting the edges of these'dogs or wings beyond the edgesof the recesses so that the projecting edges of the dogs or wings will coincide with the ribs 64 on the plunger to assist in guiding thev extremity ofthe plunge'r and this elastic member 72 preferably passes through an aperture 73 in the wall or partition 67 and theextremities thereof are adapted to be seated with'in a suitable 'notch or recess in the respective dog or wing. As the plunger 63 is raised or lowered in the former 35 the elastic member will tend to hold the edges of the dogs or wings extended beyond the recesses so that the extended edges will project into the grooves 62 in the walls of the former above the enlarged portions 29 of the sliding guide 25 but when the plunger is lowered to cause the extremities of the dogs or wings 69 to engage the rounded faces 32 of the enlargements 29 on the sliding guide 25, the dogs Ior wings will be.

seated or forced within. the recesses 66 against the tension of the elastic member 72 and thereby reduce the width of the lower extremity of the plunger to permit the said extremity to enter thereduced portion of the sliding guide to force the staple into the box and hold it while being clenched.

29 may be provided with grooves 75 for guiding the legs ofthe staple and if desired able cutter 77 may be supported by one of the walls 36 ofthe former 35 for severing` theV material as itis fed into the anvil.

The plunger 63l may be reciprocated in ,Y

any desired or suitable manner but preferably by means of a pitman rod 7 8 connected by .one extremity as at 79 to the cam 21 and by its other extremity to a suitable lateral projection 80 in the plunger which extends beyond the former. The sliding guideA 25 may be provided with a lateral projection 81 extendin beyond one of the sides 26 thereof pre erably at the upper extremity which is adapted to engage the upper extremity of one of the guides, preferably the guide 24, on the support and serves as a :mea-ns for limitin the` movement in one direction of the slidm guidev and also acts as a support for the guide. If desired, the operating camand the upper portions of the "guide, former and plunger may be inclosed within a suitable casing 82 yhaving a transparent front 83.

The staples lare preferably formed from a .continuous strip of material 84 which is of :some width, as shown more clearly in Figs.

l14 to 17, and which material is supplied from 'a spool 85 rotatably mounted upon a suit- .able support 86and a suitable guide 87 may be provided for the material as it leaves thev spool 85.

Any suitable means may be provided for. -feeding'the material from the Aspool to the former and driver. A suitable and eliicient means for accomplishing this purposecomprises an operating arm or lever 88 which is pivotally 'supported intermediate its, ends 4as at 89 upon any portion of the' supporting mechanism. Oneextremity of the arm 88 is enlarged as at 90 to form a support for lthe material 84 and coperatin with thel support are a plurality of gripping devices v 91 preferably 1n the form of rollers having 4corrugated peripheries', which rollers are arranged in tandem and in close proximity to the support 90. These rollers are preferably journaled upon eccentric bearings and coperating with the r0llers91 is a similar rollerv 92- which in turnV coperates with a support 93 over which the material passes.

The roller 92 -and the support 93 are secured to a stationary portion 94 of the mechanism and is adapted to grip the material to prevent jits slipping when the rollers -91 are moved backwardly for the purpose of securing a new grip upon the material. The rollers 91 and the roller 92 are so mounted with respect to each other that when the support 90 of the arm 88 is moved forward or in a The rounded faces'32 of the enlargements periphery of the cam.

Mounted within one of the guides, preferably the guide 24, is a guide 96 which projects through a suitable cut away portion 97 (see Figs. 1 and 7) in one of the walls 26 of the sliding guide 25 and the extremity of this guide 96 coperates with the cutter 77 for severing the material into the -proper length. This guide 96 is arranged in aline` ment with the slot 60 in the anvil 49 when the latteris in its raised position and the extremities of the sides 36 of. theformer 35 are provided with recesses 98 (shown more clearly in Fig. 8) which are also adapted to vregister with the slot 60. f

In operation and 'assuming the parts to be in the position shown in Fig. 1 of the drawings, which is the normal position of the mechanism or the position the mechanism assumes when it isdesired-to start 'the machine, the material will be fed from the roll 85 through the guide 96 in the manner already set forth. As the material passes .out of the guide 96 itv will enter the slot 60 in the anvil 49, the cam 21 being so timed that the feeding operation will stop when the forming mechanism begins to operate. When the material is seated in the slot 60, the former 35will be first lowered, causing the material to be severed by the cutter 77 into the proper length. As the former de# scends, the ends of the strip which has been severed will enter the recesses 98 and the former continues to descend, which will bend the extremities of the material over the sides of the anvil toform the legs 99 shown in Fig. l5. By the time the legs have been thus formed, the former .will have assumed such a position with respect to the sliding guide 25 that the anti-friction roller 39 will engage the lower edge of the aperture 27 and a continued movement of the former in the same direction will lower lthe sliding guide to cause the inclined faces 31 to engage and rest upon and astride of the corner lowered, the rear edge thereof will move of the box 5 8. As the sliding guide 25 is being lowered Aby the former 3 5, the cam through the medium of the pitman 78 will lower the plunger 63. As the plunger is downwardly against the inclined face 55 of the anvil 49 and cause the anvil to recede against the tension of the elastic member 53.

By the time the' anvil recedes, the staple willbe held against lateral movement by means of the recesses 98 .in the former and the staple thus formedwill be stripped from the but anvil. A continued movement ofthe plunger inthe same direction will then force the staple downwardly against the curved faces 32 of the enlargements 29 on the lower extremities of the sliding guide, which will tend to curve the legs 99 inwardly toward each other, as shown in Fig. 16. As the plunger or driver follows the staple to force it through the material 58, the dogs or wings 69 will be forced into their respective recesses in the manner already set forth and the sideskof the plunger below the ribs 64 will engage the rounded portions 32 of the enlargements 29. A continued movement of the plunger inthe same direction will cause the staple (to assume the shape shown in Fig.l17 of the drawings and a still further movement ofthe plunger will force the staple through the material 58 so that the legs 99 thereof will-be clenched against the inner face of the material, as shown in Fig. 12, by means of a suitable clenching mechanism, which forms no part of the present invention and whichv mechanism it is unnecessary to illustrate. After the staple has been thus formed and driven, the plunger 63 and former 35 will be raised by the cam 21 and the elastic member 34 will start to raise the sliding guide 25 topermit the work to be remo-ved from the support and the slidin guide will be further raised by means o the anti-friction roller 39 engaging the up er edge of the aperture 27. The grooves 7)5 in the rounded faces 32- of the enlar ements 29 of the sliding ide 25 serve to i-- rect the staple throng the material and with this improved-,construction it will be apparent that the legs of the staple willy be y latter against displacementand may itself be held removably in position by means of suitable fastening devices 101 passing therethrough and into the guides 23 and 24. If desired, a suitable guard 102 may be provided for Aprotecting the extremity of the arm 88 as it moves.

I n order that the invention might be fully understood the details of the foregoing embodiment thereof have been thus described,

same, va movable guide for the staple former,

means for moving the guide, an anvil bodily movable into engagement with the work and over which the staple' is formed, said anvil being capable of such movement independently with respect to the guide, and means for imparting such bodily movement to the anvil. j

42. In a stapling tion of a reciprocating staple former, and a staple driver, means for reciprocating the same, a bodily movable anvil over which the staple is formed, saidanvil being adapted to engage and rest upon the Work, means L0 for imparting such bodily movement with the former after the staple is formed, a movsame, a movable guide for the former adapted to engage the Work, elastic means for normally holding the guide out of engagement vvith the Work and positive means vfor moving the guide into engagement with the work and against the tension of said 4elastic means, said positive means Ibeingalso adapted to move the guide away from the work and said. elastic means being i adapted Ato move the guide out of engagement with the Work in advance of the operation of the said positive means.

5. A stapling machine, including a movable guide, a staple formerV movable in the 40 guide, said guide and former having an open end, the said opening in the end of the guide being contracted to form a port-ion projecting across the end of the `former and .said portion being provided with inclined faces extending across the plane ofthe open end of the staple former, a driver movable in the former and having 'a driving yface stationary with respect to the driver, said driver and former being provided with a the parts assembled, said tongue terminating short of the extremity'of the respective element, means supported by said element to form a continuation .of `the tongue, said' means being movable into a plane' Within. the edges of the element to permit the width of the extremity of the plunger to be reduced whereby said extremity Will enter the contracted portion of the guide,.an`d. means for operating the respective parts. v

6. A stapling machine, including a mov- 'able guide, a staple former movable in the guide, said ide and former having an o'pen end, the sai opening in the end of the guide being contracted to form a portion projectmachine, the combinaguide, said coperating tongue and groove for holding Ved to 'ing acrossthe end of the lformer and said portion being provided with inclined facesextending across the plane of theI open end of the staple former, a vdriver movable in the former and having a driving face stationary with respect to the driver, said driver and former being provided with a c'ooperating tongue and groove for holding the parts assembled, said tongue terminating short lof the extremity of the lrespective element, yielding means supported by said element to lform aY continuation of the tongue, said means being movable into a planevvith- -in the edges of the element to permit the of the plunger to be Width of the extremity extremity will enter reduced whereby sai the contracted portion of the guide, and

means for Operating the respective parts.

7. A stapling machine including a movable guide, a staple former movable in the ide and former having an open end, the sai opening .in the endsof the guide portion being provided with inclined faces extending across the plane of the open end of the staple former, a driver movable in the former and having a driving face stationary withv respect to the driver, lsaid driver and former being provided wlth a 'cooperatingl ton e and (groove for holding the parts assemb ed, sai tongue terminating short of the extremity of the respectiveelement, a wing pivotally supported by the driver to forma continuation of the tongue,

' and elastic means normally holding the 'Wing projected,4 said Wing being ada'ted to be moved into a plane Within the e ges of the driver against the tensionv of the elastic means to permit the extremity of the driver to enter the contracted portion of the guide, and means for operating the respective parts( i 8. 'A stapling machine, including a. movable guide, a. staple former movable .in the guide and having a driving face stationary with respect tothedriver, said guide'and former/having an open end, the said openingv in the end of the guide being contracted to form a portion projecting across the end 'of the former and said portion being probeing contracted to form a portion projectthe end of the'ormer and saidl to enter the grooves, said tongues terminating short of the endof the driver Wings pivotally supported by the driver an adaptbe projected beyond the edges thereof to form .continuations of the res ective tongues, and -means for normally holding the Wings projected, said tongues being opposed to each other and adaptedto engage a portion of the guide to be moved within the plane between the edges ofthe driver to permit the extremit vthereof 'to enter the` contracted portion o the guide.A

9. A stapling machine, including a movable guide, ar staple former movable in the guide, said guide and former having an open end, the said opening in the end of the guide being contracted to form a portion projecting across rthe end of theformer and j said portion being provided with Vinclined faces extending across the plane of the open end of the staple former, said former being4 provided with spaced walls having longitudinal grooves extendin to the open end, a driver movable in the ormer and having a driving face stationary with respect to the driver, said driver being also provided with tongues adapted to enter the grooves, said tongues terminating short of the end of the driver, wings detachably pivoted to the driver and adapted-to be projected beyond respect thereto, a guide for the driver, a' por tion of the guide being contracted and means whereby .the diameter of a portion of the driver may be reduced to permit such portlon to enter thelcontracted portion of the guide.

stapling machine' including a. stapledrlver having a driving face stationary with eeuws 11. A stapling machine including a reciprocating staple driver having a driving face stationary with respect thereto, means fo'r reciprocating the same, a uide for the driver, said driver substantial fillingthe guide, a portion of the guide being contracted, and yielding means whereby the diameter of one extremity of the driver may be reduced-to ermit said extremity to enter the contracted). portion of the guide.

12. A` stapling machine, including a staple driver havlng a reduced extremity, a

gulde for the driver, said guide being provided with a contracted portion adjacent one extremity adapted to receive the reduced extremit of the driver, and means forming an extension of the reduce'd extremity of the driver for causin said extremity to substantially lill the portion thereo v 13. A stapling machine including a staple driver having a reduced extremity, a guide for the driver, said guide being provided with -a contracted portion adjacent an extremity adapted to receive the reduced extremity of the driver, and a yielding member adapted to be projected beyond the'edge of the reduced extremity of the driver to cause said-extremity to substantially fill the .guide when the extremity moves in the guide beyond the contracted portion thereof.

In testimony whereof I have signed my guide beyond the contracted name to this specification, in the presence of two subscribing witnesses, on this 27th day of June A'. D. 1908.

WILLIAM OSTE-RHOLM. Witnesses J. I-I. JocHUM, Jr., C. H. SEEM. 

